ID That Travels: EN 15273 on Railway Vehicle Identification and Marking Explained
EN 15273 defines railway vehicle identification and marking requirements, ensuring safe, interoperable, and traceable rolling stock across European rail networks.

What Is EN 15273?
EN 15273 is a European standard that specifies vehicle identification and marking requirements for railway rolling stock.
It ensures vehicles are safely identifiable, traceable, and interoperable across European rail networks.
Importance of EN 15273
Proper identification and marking of rolling stock are essential for safety, maintenance, and operational management.
EN 15273 standardizes numbering systems, marking positions, and label durability to support regulatory compliance and interoperability.
- Specifies standardized vehicle identification numbers
- Defines marking positions on the rolling stock
- Ensures durability and legibility of markings
- Supports traceability for maintenance and operational management
Scope and Technical Coverage
The standard applies to all types of railway vehicles, including locomotives, passenger coaches, and freight wagons.
It defines marking systems, label durability, placement rules, and documentation for compliance.
- Vehicle identification number (VIN) format and structure
- Marking positions on sides, ends, and underframes
- Durable and legible marking materials
- Documentation and record-keeping procedures
- Integration with maintenance and operational systems
Key Technical Parameters
| Parameter | Description | Operational Impact |
|---|---|---|
| Vehicle Identification Number | Unique numeric and alphanumeric code for each rolling stock unit | Ensures traceability and prevents misidentification |
| Marking Positions | Defined locations on vehicle body for identification visibility | Improves operational safety and inspection efficiency |
| Material and Durability | Resistant labels or engravings against weather and wear | Maintains visibility and compliance throughout service life |
| Documentation | Records of vehicle identity and marking verification | Supports maintenance, certification, and regulatory audits |
Relationship with Other Standards
EN 15273 complements UIC Leaflets 526-1 (freight wagons), 545 (wheelsets), and EN 15595 (vehicle design).
It ensures rolling stock identification is consistent, traceable, and compliant with European rail interoperability requirements.
- Supports UIC 526-1 bogie and axle load documentation
- Integrates with UIC 545 wheelset marking standards
- Ensures compliance with EN 15595 vehicle design and numbering
Who Uses EN 15273?
The standard is applied by rolling stock manufacturers, railway operators, maintenance teams, and certification authorities to ensure safe, traceable, and interoperable vehicles.
- Rolling stock manufacturers and designers
- Railway operators and infrastructure managers
- Maintenance teams and inspection personnel
- Certification authorities and regulatory auditors





